{{define "chapter02/arr.html"}}

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <!-- (1)循环 -->

    {{range .}}
        {{.}}
    {{end}}
    <br>
    <!-- （2）循环 -->
    {{range $i, $v := .}}
        {{$i}}:
        {{$v}}
        <br>
    {{end}}
</body>
</html>

{{end}}